U.S. patent number 8,875,532 [Application Number 13/613,659] was granted by the patent office on 2014-11-04 for device for regulating the temperature of a plurality of components of a vehicle and vehicle system.
This patent grant is currently assigned to Behr GmbH & Co. KG. The grantee listed for this patent is Dirk Neumeister, Matthias Stripf, Manuel Wehowski. Invention is credited to Dirk Neumeister, Matthias Stripf, Manuel Wehowski.
United States Patent |
8,875,532 |
Neumeister , et al. |
November 4, 2014 |
Device for regulating the temperature of a plurality of components
of a vehicle and vehicle system
Abstract
A device for regulating a temperature of a plurality of
components of a vehicle is provided. The device has a first heat
exchanger and a second heat exchanger, which are connected to one
another in order to form a closed refrigerant circuit. The device
furthermore has a first multiway valve, a second multiway valve, a
third multiway valve and a fourth multiway valve for connecting the
first and the second heat exchanger to a first component and a
second component of the vehicle.
Inventors: |
Neumeister; Dirk (Stuttgart,
DE), Stripf; Matthias (Karlsruhe, DE),
Wehowski; Manuel (Stuttgart, DE) |
Applicant: |
Name |
City |
State |
Country |
Type |
Neumeister; Dirk
Stripf; Matthias
Wehowski; Manuel |
Stuttgart
Karlsruhe
Stuttgart |
N/A
N/A
N/A |
DE
DE
DE |
|
|
Assignee: |
Behr GmbH & Co. KG
(Stuttgart, DE)
|
Family
ID: |
46829671 |
Appl.
No.: |
13/613,659 |
Filed: |
September 13, 2012 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20130061627 A1 |
Mar 14, 2013 |
|
Foreign Application Priority Data
|
|
|
|
|
Sep 13, 2011 [DE] |
|
|
10 2011 082 584 |
|
Current U.S.
Class: |
62/243 |
Current CPC
Class: |
B60L
3/0046 (20130101); B60L 3/0061 (20130101); B60L
3/003 (20130101); B60L 58/27 (20190201); B60L
58/26 (20190201); F01P 3/20 (20130101); F25B
25/005 (20130101); B60L 1/003 (20130101); F01P
2050/24 (20130101); B60L 2240/525 (20130101); Y02T
10/70 (20130101); Y02T 10/642 (20130101); B60L
2240/34 (20130101); B60L 2240/36 (20130101); B60L
2240/425 (20130101); Y02T 10/705 (20130101); Y02T
10/64 (20130101); Y02T 10/7005 (20130101) |
Current International
Class: |
B60H
1/32 (20060101) |
Field of
Search: |
;62/189,239,243,324.1,467 ;165/96 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Jones; Melvin
Attorney, Agent or Firm: Muncy, Geissler, Olds & Lowe,
P.C.
Claims
What is claimed is:
1. A device for regulating a temperature of a plurality of
components of a vehicle, the device comprising: a first heat
exchanger having a coolant inlet, a coolant outlet, a refrigerant
inlet and a refrigerant outlet; a second heat exchanger with a
coolant inlet, a coolant outlet, a refrigerant inlet and a
refrigerant outlet, wherein the refrigerant outlet of the first
heat exchanger is connectable to the refrigerant inlet of the
second heat exchanger and the refrigerant outlet of the second heat
exchanger is connectable to the refrigerant inlet of the first heat
exchanger thereby forming a closed refrigerant circuit; a first
multiway valve for coolant with an inlet connection connectable to
the coolant outlet of the first heat exchanger and with at least
one first outlet connection that is connectable to a first
component of the vehicle, and a second outlet connection that is
connectable to a second component of the vehicle; a second multiway
valve for coolant with an inlet connection connectable to the
coolant outlet of the second heat exchanger and with at least one
first outlet connection that is connectable to the first component
of the vehicle and a second outlet connection that is connectable
to the second component of the vehicle; a third multiway valve for
coolant with an inlet connection connectable to the first component
of the vehicle, with a first outlet connection that is connectable
to the coolant inlet of the first heat exchanger, and with a second
outlet connection connectable to the coolant inlet of the second
heat exchanger; and a fourth multiway valve for coolant with an
inlet connection that is connectable to the second component of the
vehicle, with a first outlet connection connectable to the coolant
inlet of the first heat exchanger and with a second outlet
connection connectable to the coolant inlet of the second heat
exchanger.
2. The device according to claim 1, wherein the multiway valves are
adapted to allow a flow of the coolant from the inlet connection to
one of the outlet connections or in a changeable mass flow ratio to
several outlet connections.
3. The device according to claim 1, further comprising an
electronic control device that is electrically connectable to the
multiway valves and to an input interface for receiving control
information, wherein the electronic control device is configured to
trigger the multiway valves based on the control information.
4. The device according to claim 1, wherein the first heat
exchanger is a condenser and the second heat exchanger is a
chiller.
5. The device according to claim 1, wherein the first multiway
valve has a third outlet connection that is connectable to a third
component of the vehicle and the second multiway valve has a third
outlet connection that is connectable to the third component of the
vehicle, and wherein the device has a fifth multiway valve for
coolant with an inlet connection that is connectable to the third
component of the vehicle, with a first outlet connection
connectable to the coolant inlet of the first heat exchanger and
with a second outlet connection connectable to the coolant inlet of
the second heat exchanger.
6. The device according to claim 5, wherein the third component is
a low-temperature cooler.
7. The device according to claim 1, further comprising: a first
coolant pump that is connectable between the coolant outlet of the
first heat exchanger and the inlet connection of the first multiway
valve; and a second coolant pump that is connectable between the
coolant outlet of the second heat exchanger and the inlet
connection of the second multiway valve.
8. The device according to claim 1, further comprising a compressor
that is connectable between the refrigerant outlet of the second
heat exchanger and the refrigerant inlet of the first heat
exchanger.
9. The device according to claim 1, further comprising a throttle
that is connectable between the refrigerant outlet of the first
heat exchanger and the refrigerant inlet of the second heat
exchanger.
10. A vehicle system comprising: a first component that is to be
temperature regulated; a second component that is to be temperature
regulated; and a device according to claim 1, wherein the first
outlet connection of the first multiway valve, the first outlet
connection of the second multiway valve, and the inlet connection
of the third multiway valve are connectable to the first component,
and wherein the second outlet connection of the first multiway
valve, the second outlet connection of the second multiway valve,
and the inlet connection of the fourth multiway valve are
connectable to the second component.
Description
This nonprovisional application claims priority under 35 U.S.C.
.sctn.119(a) to German Patent Application No. DE 10 2011 082 584.3,
which was filed in Germany on Sep. 13, 2011, and which is herein
incorporated by reference.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a device for regulating the
temperature of a plurality of components of a vehicle and to a
vehicle system that has the device for temperature control.
2. Description of the Background Art
In vehicles, such as hybrid vehicles or electric vehicles, when
modern high-performance batteries are used it must be ensured that
the temperature of the batteries during operation is within a
certain interval in order to guarantee the efficiency, operational
reliability and safety of the batteries. On the one hand, the
efficiency of the battery cells of the batteries declines very
sharply if a suitable operating temperature is fallen below and the
cells produce a high power dissipation. On the other hand, above a
suitable operating range processes that lead to irreparable damage
take place inside the cells. For these reasons battery temperature
control, i.e., cooling or heating, is necessary. Furthermore, an
air conditioning of the vehicle cabin is frequency necessary, i.e.,
the heating and cooling of the vehicle interior, depending on the
applicable environmental conditions. Also further components, such
as electric components, for example, require a temperature control.
For regulating the temperature of the different components, heat
transfer fluids, such as refrigerant, coolant, air, etc. are
generally used. Thermal management plays an important role in
hybrid vehicles and electric vehicles as well as in the off-highway
field.
For various vehicle components a heating as well as a cooling must
be provided. The plurality of components to be temperature
regulated and the interaction thereof as well as the necessity of a
simultaneous representation of heating and cooling for different
components depending on environmental, operating and marginal
conditions, result in a complex temperature control task.
To meet all temperature control requirements, several cooling
circuits and heating circuits are often used, which are either
operated independently of one another or can also be in interaction
with one another. The complexity of the thermal management with the
different components to be temperature regulated and the
interactions thereof requires a broad and well-founded knowledge
for designing a suitable, functional temperature control
system.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a
compact, centralized device for regulating the temperature of a
plurality of components of a vehicle and a vehicle system that has
the device. This object is attained, in an embodiment, by a device
for regulating the temperature of a plurality of components of a
vehicle as well as a vehicle system.
In an embodiment, the present invention is based on the finding
that a device for temperature control can be constructed such that
the components to be temperature regulated can be supplied, for
example, with a cooling agent by one or two heat exchangers in a
need-based and independent manner. The device is thereby embodied
in order to meet the temperature control demands in a vehicle by
advantageous guidance and control of the cooling agent flows.
According to exemplary embodiments of the present invention, for
example, a central temperature control unit or device for
temperature control in a vehicle can independently take over the
temperature control of different components in a vehicle via a
cooling agent. The invention permits the independent, automatic,
need-based heating and cooling of components, for example, in
hybrid and electric vehicles as well as in non-automotive or
off-highway applications. Accordingly, the device offers a simple
way of implementing the different temperature control functions of
complex design in the vehicle. According to exemplary embodiments
of the present invention, the device is cost effective,
space-saving, energy-efficient and easy to control and regulate.
Further advantages of the invention lie in that, for example, the
refrigerant circuit is extremely compact, contains little
refrigerant and can be arranged outside the passenger compartment.
Thus long refrigerant lines through the vehicle are not necessary.
In particular with safety-relevant refrigerants, a leak in the
passenger compartment e.g., in the event of an accident, can be
considered critical. The danger of toxic refrigerant leaking into
the passenger compartment, e.g. in the case of an accident, can
thus be avoided. With the device according to the exemplary
embodiments of the present invention, only coolant lines with more
cost-effective cooling agent are guided to the respective
components. The refrigerant circuit is thus designed in the most
compact manner possible and the cooling or heating of the
individual components takes place via the coolant guided to the
individual components, for example, via hoses or lines. The use of
only a small quantity of refrigerant is thus possible. Accordingly
the placement and arrangement of the device can be freely
selected.
The present invention provides in an embodiment, a device for the
temperature control of a plurality of components of a vehicle,
wherein the device includes a first heat exchanger with a coolant
inlet, a coolant outlet, a refrigerant inlet and a refrigerant
outlet and a second heat exchanger with a coolant inlet, a coolant
outlet, a refrigerant inlet and a refrigerant outlet, wherein the
refrigerant outlet of the first heat exchanger is connected to the
refrigerant inlet of the second heat exchanger and the refrigerant
outlet of the second heat exchanger is connected to the refrigerant
inlet of the first heat exchanger in order to form a closed
refrigerant circuit; a first multiway valve for coolant with an
inlet connection connected to the coolant outlet of the first heat
exchanger and with at least one first outlet connection that can be
connected to a first component of the vehicle, and a second outlet
connection that can be connected to a second component of the
vehicle; a second multiway valve for coolant with an inlet
connection connected to the coolant outlet of the second heat
exchanger and with at least one first outlet connection that can be
connected to the first component of the vehicle and a second outlet
connection that can be connected to the second component of the
vehicle; a third multiway valve for coolant with an inlet
connection that can be connected to the first component of the
vehicle, with a first outlet connection connected to the coolant
inlet of the first heat exchanger, and with a second outlet
connection connected to the coolant inlet of the second heat
exchanger; and a fourth multiway valve for coolant with an inlet
connection that can be connected to the second component of the
vehicle, with a first outlet connection connected to the coolant
inlet of the first heat exchanger and with a second outlet
connection connected to the coolant inlet of the second heat
exchanger. Optionally, further multiway valves can also be
used.
The vehicle can be a vehicle for conveying people, loads or goods,
for example, an automobile, bus, truck, fork lift truck or the
like, in particular a vehicle with electric drive or hybrid drive,
wherein the vehicle can be a road-bound vehicle or a rail-mounted
vehicle. The multiway valves can be actuated in a suitable manner,
e.g., magnetically, electrically, hydraulically, etc. and can be
controlled in a suitable manner. The multiway valves, in particular
the first multiway valve and the second multiway valve, can be at
least two-way valves. The device can have fluid lines, by means of
which the units of the device, such as heat exchanger and multiway
valves, are connected to one another to render possible a fluid
flow. The components of the vehicle to be temperature regulated can
also be connected in terms of fluid by means of fluid lines to the
corresponding units of the device. The components of the vehicle
can be, for example, an electrochemical energy storage device or a
battery of the vehicle, a cabin or vehicle interior, cargo space or
passenger compartment of the vehicle, an engine or power
electronics, etc. The components can also have fluid connections
for coolant.
The multiway valves can be respectively embodied in order to render
possible a flow of the coolant from the inlet connection to one of
the outlet connections or in a changeable mass flow ratio to both
outlet connections. The multiway valves can thus be embodied to
render possible in a first operating position or valve position a
fluid flow from the inlet connection to the first outlet
connection. The multiway valves can also be embodied in order in a
second operating position or valve position to render possible a
fluid flow from the inlet connection to the second outlet
connection. Finally, the multiway valves can be embodied in order
to render possible in a region from third operating positions or
valve positions a fluid flow from the inlet connection to the first
outlet connection and to the second outlet connection, wherein the
fluid flow between the first outlet connection and the second
outlet connection can be divided in a variable ratio. An embodiment
of this type provides the advantage that the temperature control of
the components can be carried out in a particularly flexible,
independent and need-based manner. The function of the multiway
valves can also be embodied by a plurality of shut-off valves.
Furthermore, an electronic control device can be provided that is
electrically connected to an input interface for receiving control
information and to the multiway valves and is embodied in order to
trigger the multiway valves based on the control information. The
control device can thus be embodied, to trigger the multiway valves
regardless of the control information such that a specific
operating position or valve position is adjusted. An embodiment of
this type provides the advantage that the cooling or heating of
corresponding components can be taken over independently by the
device by means of the integrated control of the valves. The
temperature control function is thus carried out according to the
control information independently and completely by the device.
According to an embodiment, the first heat exchanger can be a
condenser. The second heat exchanger can be a chiller (heat
exchanger between refrigerant and coolant). The condenser or
refrigerant coil can thereby be arranged on a high side or hot side
of the device. The chiller can be arranged on a low side or cold
side of the device. Each of the heat exchangers is embodied in
order to render possible a heat transfer between the refrigerant
and the coolant. An embodiment of this type provides the advantage
that in this manner a temperature control of the components can be
achieved efficiently by heating and/or cooling the same by its heat
exchangers.
According to an embodiment, the first multiway valve can have a
third outlet connection that can be connected to a third component
of the vehicle. The second multiway valve can also have a third
outlet connection that can be connected to the third component of
the vehicle. The device can thereby have a fifth multiway valve for
coolant with an inlet connection that can be connected to the third
component of the vehicle, with a first outlet connection connected
to the coolant inlet of the first heat exchanger and with a second
outlet connection connected to the coolant inlet of the second heat
exchanger. In this manner a further component of the vehicle can
also be connected to the device. The first multiway valve hereby
has a further outlet connection, the second multiway valve has a
further outlet connection and a further multiway valve for coolant
with an inlet connection that can be connected to the further
components of the vehicle, with a first outlet connection connected
to the coolant inlet of the first heat exchanger, and with a second
outlet connection connected to the coolant inlet of the second heat
exchanger is provided. An embodiment of this type provides the
advantage that at least one further component to be temperature
regulated can be easily connected to the device. A number of
components that can be temperature regulated by means of the device
can thus be expanded easily by one or more components.
The third component can hereby be a low-temperature cooler. An
embodiment of this type has the advantage that an efficient,
simultaneous and need-based temperature control of the first
component and the second component is rendered possible.
Furthermore, a flow through of the low-temperature cooler with
coolant can also be used, if desired, not to act on other
components with the full mass flow of the coolant.
Furthermore, a first coolant pump can be provided, which is
connected between the coolant outlet of the first heat exchanger
and the inlet connection of the first multiway valve. A second
coolant pump can also be provided, which is connected between the
coolant outlet of the second heat exchanger and the inlet
connection of the second multiway valve. The coolant pumps can be
electrically connected to the electronic control device and can be
triggered by the same. An embodiment of this type provides the
advantage that a flow rate of the coolant can be controlled
precisely and in a need-based manner by means of the pumps.
Furthermore, a compressor can be provided, which is connected
between the refrigerant outlet of the second heat exchanger and the
refrigerant inlet of the first heat exchanger. The compressor can
be electrically connected to the electronic control device and can
be triggered by the same. The compressor is thus connected in the
refrigerant circuit. An embodiment of this type provides the
advantage that the device can take over independently the cooling
or heating of corresponding components with the integrated control
of the compressor and the valves. The refrigerant circuit can be
controlled on a need-based basis by means of the compressor. The
temperature control function can thus be carried out completely by
the device.
Furthermore, a throttle can be provided, which is connected between
the refrigerant outlet of the first heat exchanger and the
refrigerant inlet of the second heat exchanger. The throttle is
thus connected in the refrigerant circuit. An embodiment of this
type provides the advantage that the refrigerant circuit can be
operated efficiently.
The present invention furthermore creates a vehicle system
including: a first component for temperature control and a second
component for temperature control; and a device for temperature
control of a plurality of components according to a described
embodiment, wherein the first outlet connection of the first
multiway valve, the first outlet connection of the second multiway
valve and the inlet connection of the third multiway valve are
connected to the first component, wherein the second outlet
connection of the first multiway valve, the second outlet
connection of the second multiway valve and the inlet connection of
the fourth multiway valve are connected to the second
component.
In a vehicle system of this type, the above-mentioned device can be
applied or used advantageously to regulate the temperature of the
components.
Further scope of applicability of the present invention will become
apparent from the detailed description given hereinafter. However,
it should be understood that the detailed description and specific
examples, while indicating preferred embodiments of the invention,
are given by way of illustration only, since various changes and
modifications within the spirit and scope of the invention will
become apparent to those skilled in the art from this detailed
description.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the
detailed description given hereinbelow and the accompanying
drawings which are given by way of illustration only, and thus, are
not limitive of the present invention, and wherein the sole FIGURE
illustrates a diagrammatic representation of a vehicle system
according to an exemplary embodiment of the present invention.
DETAILED DESCRIPTION
In the following description of the preferred exemplary embodiments
of the present invention, the same or similar reference numbers are
used for the elements shown in the various drawings with similar
effect, wherein a repeated description of these elements is
omitted.
FIG. 1 shows a diagrammatic representation of a vehicle system 100
according to an exemplary embodiment of the present invention. The
vehicle system 100 has a first component 101, which according to
the present exemplary embodiment can be an air conditioning device
for air conditioning a cabin of the vehicle, a second component
102, which according to the present exemplary embodiment can be a
battery of the vehicle, a third component 103, which according to
the present exemplary embodiment can be a low-temperature cooler, a
device 110 for temperature control, a first heat exchanger 121,
which according to the present exemplary embodiment can be a
condenser or refrigerant coil, a second heat exchanger 122, which
according to the present exemplary embodiment can be a chiller
(heat exchanger refrigerant/coolant), a first multiway valve 131, a
second multiway valve 132, a third multiway valve 133, a fourth
multiway valve 134, a fifth multiway valve 135, a first coolant
pump 141, a second coolant pump 142, a throttle 150 and a
compressor 160.
The device 110 is embodied in order to regulate the temperature of
the components 101, 102, 103. The device 110 has the first heat
exchanger 121, the second heat exchanger 122, the first multiway
valve 131, the second multiway valve 132, the third multiway valve
133, the fourth multiway valve 134, the fifth multiway valve 135,
the first coolant pump 141, the second coolant pump 142, the
throttle 150 and the compressor 160 as well as fluid lines, not
explicitly provided with reference numbers in FIG. 1, which connect
the elements of the device 110 in terms of fluid.
The first heat exchanger 121 can be a condenser or a refrigerant
coil. The first heat exchanger 121 has a coolant inlet, a coolant
outlet, a refrigerant inlet and a refrigerant outlet. The
refrigerant outlet of the first heat exchanger 121 is connected by
means of a fluid line for refrigerant to the refrigerant inlet of
the second heat exchanger 122. The coolant inlet of the first heat
exchanger 121 can be connected by means of fluid lines for coolant
to the first outlet connections of the third multiway valve 133, of
the fourth multiway valve 134 and of the fifth multiway valve 135.
The coolant outlet of the first heat exchanger 121 can be connected
by means of a fluid line for coolant to the inlet connection of the
first multiway valve 131, wherein the first fluid pump 141 is
connected between the same.
The second heat exchanger 122 can be a chiller. The second heat
exchanger 122 has a coolant inlet, a coolant outlet, a refrigerant
inlet and a refrigerant outlet. The refrigerant outlet of the
second heat exchanger 122 is connected by means of a fluid line for
refrigerant to the refrigerant inlet of the first heat exchanger
121. The coolant inlet of the second heat exchanger 122 can be
connected by means of fluid lines for coolant to the second outlet
connections of the third multiway valve 133, of the fourth multiway
valve 134 and of the fifth multiway valve 135. The coolant outlet
of the second heat exchanger 122 can be connected by means of a
fluid line for coolant to the inlet connection of the second
multiway valve 132, wherein the second fluid pump 142 is connected
between the same.
Thus a closed refrigerant circuit is formed by the first heat
exchanger 121, the second heat exchanger 122 and the fluid lines
for refrigerant. The throttle 150 is connected between the
refrigerant outlet of the first heat exchanger 121 and the
refrigerant inlet of the second heat exchanger 122 in the
refrigerant circuit. The compressor 160 is connected between the
refrigerant outlet of the second heat exchanger 122 and the
refrigerant inlet of the first heat exchanger 121 in the
refrigerant circuit.
The first multiway valve 131 for coolant has an inlet connection
connected by means of a fluid line for coolant to the coolant
outlet of the first heat exchanger 121, a first outlet connection
connected by means of a fluid line for coolant to the first
component 101 of the vehicle, a second outlet connection connected
by means of a fluid line for coolant to a second component 102 of
the vehicle, and a third outlet connection connected by means of a
fluid line for coolant to the third component 103 of the
vehicle.
The second multiway valve 132 for coolant has an inlet connection
connected by means of a fluid line for coolant to the coolant
outlet of the second heat exchanger 122, a first outlet connection
connected by means of a fluid line for coolant to the first
component 101 of the vehicle, a second outlet connection connected
by means of a fluid line for coolant to the second component 102 of
the vehicle and a third outlet connection connected by means of a
fluid line for coolant to the third component 103 of the
vehicle.
The third multiway valve 133 for coolant has an inlet connection
connected by means of a fluid line for coolant to the first
component 101 of the vehicle, a first outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
first heat exchanger 121, and a second outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
second heat exchanger 122.
The fourth multiway valve 134 for coolant has an inlet connection
connected by means of a fluid line for coolant to the second
component 102 of the vehicle, a first outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
first heat exchanger 121, and a second outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
second heat exchanger 122.
The fifth multiway valve 135 for coolant has an inlet connection
connected by means of a fluid line for coolant to the third
component 103 of the vehicle, a first outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
first heat exchanger 121 and a second outlet connection connected
by means of a fluid line for coolant to the coolant inlet of the
second heat exchanger 122.
The multiway valves 131, 132, 133, 134 and 135 are respectively
embodied in order to render possible a flow of the coolant from the
respective inlet connection to one of the outlet connections or in
a changeable mass flow ratio to several outlet connections.
The first coolant pump 141 is connected between the coolant outlet
of the first heat exchanger 121 and the inlet connection of the
first multiway valve 131. The second coolant pump 142 is connected
between the coolant outlet of the second heat exchanger 122 and the
inlet connection of the second multiway valve 132.
The first component 101 can be an air conditioning device for air
conditioning a cabin or an interior of the vehicle. The first
component 101 can be connected to the first outlet connection of
the first multiway valve 131, the first outlet connection of the
second multiway valve 132 and the inlet connection of the third
multiway valve 133.
The second component 102 can be a battery or an energy storage
device of the vehicle. For example, it can be a battery for driving
an electric vehicle or electric-hybrid vehicle. The second
component 102 can be connected to the second outlet connection of
the first multiway valve 131, the second outlet connection of the
second multiway valve 132 and the inlet connection of the fourth
multiway valve 134.
The third component 103 can be a low-temperature cooler. The third
component 103 can be connected to the third outlet connection of
the first multiway valve 131, the third outlet connection of the
second multiway valve 132 and the inlet connection of the fifth
multiway valve 134.
Although it is not shown in FIG. 1, the device 110 can have an
electronic control device, which is electrically connected to an
input interface for receiving control information and to the
multiway valves 131, 132, 133, 134 and 135 and to the compressor
160 and optionally to the pumps 141 and 142 and is embodied to
control the multiway valves 131, 132, 133, 134, and 135 as well as
the compressor 160 and optionally the pumps 141 and 142 based on
the control information.
To put it another way, the device 110 comprises a refrigerant
circuit, which has on a high side or hot side a heat exchanger 121
as well as on the low side or cold side a heat exchanger 122
between refrigerant and coolant. Both of the heat exchangers 121,
122 respectively have an infeed and discharge for the coolant.
Furthermore, the device 110 has multiway valves for distributing
and combining the coolant flows. On the hot side as well as on the
cold side, the coolant flow can be distributed among respectively
at least three different flow paths, wherein intermediate positions
between two paths or simultaneous flow through of several paths are
also conceivable. In the feedback one multiway valve with
respectively two flow paths or distribution among two flow paths is
arranged for each component to be temperature controlled.
By means of intelligent switching of the valves, all of the
combinations of cooling and heating or temperature control modes
for the different components can be realized, as is explained in
greater detail below. According to the exemplary embodiment shown
in FIG. 1, by way of example two components 101, 102 to be
temperature regulated are shown, which are a battery 102 and a
cabin 101 respectively. The low temperature cooler 103 is
advantageous in the event that the battery 102 and the cabin 101
are to be temperature regulated in the same mode (cooling or
heating). Furthermore, the low-temperature cooler 103 can also be
flowed through, in order not to act on other components 101, 102
with full mass flow. The device 110 has an interface that receives
the control information for heating and cooling the corresponding
components 101, 102. An electronic unit or electronic control
device belonging to the device 110 processes this control
information and triggers accordingly the compressor 160 and the
multiway valves 131, 132, 133, 134 and 135 as well as optionally
the pumps 141 and 142. In an alternative embodiment the control
information for cooling/heating can also represent several steps of
a temperature control, such as maximum, moderate or low cooling or
heating, etc. The first coolant pump 141 is arranged on the hot
side in the fluid flow direction directly behind the first heat
exchanger 121 on the hot side, while the second coolant pump 142 is
arranged in the fluid flow direction directly behind the second
heat exchanger 122 on the cold side. The two coolant pumps 141, 142
are used to recirculate the hot and the cold coolant.
In a first temperature control mode, a cooling of the battery 102
and a cooling of the cabin 101 can be effected, wherein the battery
102 is supplied with coolant from the chiller 122, the cabin 101 is
supplied with coolant from the chiller 122 and the low temperature
cooler 103 is supplied with coolant from the condenser 121. In a
second temperature control mode, a cooling of the battery 102 and a
heating of the cabin 101 can be effected, wherein the battery 102
is supplied with coolant from the chiller 122, the cabin 101 is
supplied with coolant from the condenser 121 and the low
temperature cooler 103 is optionally supplied with coolant from the
condenser 121. In a third temperature control mode, a cooling of
the battery 102 can be effected without temperature control of the
cabin 101, wherein the battery 102 is supplied with coolant from
the chiller 122, the cabin 101 is not supplied with coolant and the
low temperature cooler 103 is supplied with coolant from the
condenser 121. In a fourth temperature control mode, a heating of
the battery 102 and a cooling of the cabin 101 can be effected
wherein the battery 102 is supplied with coolant from the condenser
121, the cabin 101 is supplied with coolant from the chiller 122
and the low temperature cooler 103 is optionally supplied with
coolant from the chiller 122. In a fifth temperature control mode a
heating of the battery 102 and a heating of the cabin 101 can be
effected, wherein the battery 102 is supplied with coolant from the
condenser 121, the cabin 101 is supplied with coolant from the
condenser 121 and the low temperature cooler 103 is supplied with
coolant from the chiller 122. In a sixth temperature control mode,
a heating of the battery 102 can be effected without temperature
control of the cabin 101, wherein the battery 102 is supplied with
coolant from the condenser 121, the cabin 101 is not supplied with
coolant and the low temperature cooler 103 is supplied with coolant
from the chiller 122. In a seventh temperature control mode,
without a temperature control of the battery 102 a cooling of the
cabin 101 can be effected, wherein the battery 102 is not supplied
with coolant, the cabin 101 is supplied with coolant from the
chiller 122 and the low temperature cooler 103 is supplied with
coolant from the condenser 121. In an eighth temperature control
mode, without a temperature control of the battery 102 a heating of
the cabin 101 can be effected, wherein the battery 102 is not
supplied with coolant, the cabin 101 is supplied with coolant from
the condenser 121 and the low temperature cooler 103 is supplied
with coolant from the chiller 122. In a ninth temperature control
mode, neither a temperature control of the battery 102 or a
temperature control of the cabin 101 can be caused, wherein neither
the battery 102 nor the cabin 101 nor the low temperature cooler
103 are supplied with coolant.
Alternative exemplary embodiments of the present invention also
render possible a heat pump operation of the device 110 in the
vehicle system 100.
The invention being thus described, it will be obvious that the
same may be varied in many ways. Such variations are not to be
regarded as a departure from the spirit and scope of the invention,
and all such modifications as would be obvious to one skilled in
the art are to be included within the scope of the following
claims.
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